linux-kernel - [ardb:arm64-compat-alignment-fixups 2/2] arch/arm64/kernel/compat_alignment.c:391:5: warning: no previous prototype for function 'do_compat_alignment

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Message-ID: <202206281333.d7AMFcgT-lkp@intel.com>
Date:   Tue, 28 Jun 2022 13:54:52 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ard Biesheuvel <ardb@...nel.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [ardb:arm64-compat-alignment-fixups 2/2]
 arch/arm64/kernel/compat_alignment.c:391:5: warning: no previous prototype
 for function 'do_compat_alignment_fixup'

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git arm64-compat-alignment-fixups
head:   16de979d9372710aaa42cd93d3af1e9a43d53369
commit: 16de979d9372710aaa42cd93d3af1e9a43d53369 [2/2] arm64: compat: Implement misalignment fixups for multiword loads
config: arm64-allyesconfig
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 016342e319fd31e41cf5ed16a6140a8ea2de74dd)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/commit/?id=16de979d9372710aaa42cd93d3af1e9a43d53369
        git remote add ardb git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git
        git fetch --no-tags ardb arm64-compat-alignment-fixups
        git checkout 16de979d9372710aaa42cd93d3af1e9a43d53369
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kernel/ drivers/clk/qcom/ drivers/pinctrl/qcom/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> arch/arm64/kernel/compat_alignment.c:391:5: warning: no previous prototype for function 'do_compat_alignment_fixup' [-Wmissing-prototypes]
   int do_compat_alignment_fixup(unsigned long addr, struct pt_regs *regs)
       ^
   arch/arm64/kernel/compat_alignment.c:391:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int do_compat_alignment_fixup(unsigned long addr, struct pt_regs *regs)
   ^
   static 
   1 warning generated.


vim +/do_compat_alignment_fixup +391 arch/arm64/kernel/compat_alignment.c

   390	
 > 391	int do_compat_alignment_fixup(unsigned long addr, struct pt_regs *regs)

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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